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Handy tricks when playing with raspberry pi. You should know them.

Why GPG key keeps annoying me! 整天 Fail 有意思吗？

注意，这里不是说 Flask 有多好，而是。。用 Flask 用到怀疑人生！

It took me quite a lot time to try to solve this...

Note: this answer only works in non-English regions

为了备战变态的计算概论考试， 不得已要研究一下 C 的奇奇怪怪的东西

Building a table of contents (TOC) in Hugo is challenging. Here I record my attempts to build my TOC correctly. It might be outdated.

计概基础知识复习手记

测试一下 Markdown 渲染的效果 网页的 CSS

最近需要使用 SQLAlchemy 存弹幕的内容，但是遇到了存 emoji 的问题。

Building blog sites manually is tedious and often leads to mistakes, especially when hosting on master/docs